Enum in C#

Question

hi Friends,

What are wrong in this Code.It will give an Exception "Input string was not in correct format"

using System;

namespace Test

    {

   class Program

            {

   enum EnumColor:

   int{

       Red=0,Green=1,Blue=2

};

static void Main(string[]args)

                    {

   Console.WriteLine("Please Enter a Color Name");

int x=Convert.ToInt32(Console.ReadLine());

switch(x)

   {

   case (int)EnumColor.Red:

   {

   Console.WriteLine("Your Choise is Red");

break;

}

case (int)EnumColor.Green:

   {

   Console.WriteLine("Your Choise is Green");

break;

}

case (int)EnumColor.Blue:

   {

   Console.WriteLine("Your Choise is Blue");

break;

}

}

}

}

}